SSD & TRIM with OS X Capitan ?

Discussion in 'OS X El Capitan (10.11)' started by Fritzables, Nov 12, 2015.

  1. Fritzables macrumors regular

    Joined:
    May 6, 2011
    Location:
    Brisbane AUSTRALIA
    #1
    Hi All,
    I am about to install a new Samsung SSD (as the boot) on my 2011 iMac.
    With this latest OS, are there TRIM considerations I need to be aware of?
     
  2. satinsilverem2 macrumors 6502a

    satinsilverem2

    Joined:
    Nov 12, 2013
    Location:
    Richmond, VA
    #2
    Nope just drop in the SSD and go to terminal and enter "sudo trimforce enable" and your good to go. Make sure when you install your SSD you install the temperature sensor or your fans will fun at full speed all the time.
     
  3. Fritzables thread starter macrumors regular

    Joined:
    May 6, 2011
    Location:
    Brisbane AUSTRALIA
    #3
    Hey satinsilverem2, thanks for that. Much appreciated.
     
  4. flyer22 macrumors newbie

    flyer22

    Joined:
    Sep 30, 2015
    Location:
    England
    #4
    Thanks satinsilverem2 - I'm doing the same thing but just wondering how do I install the temperature sensor you mentioned.

    Thanks again Flyer
     
  5. flowrider macrumors 601

    flowrider

    Joined:
    Nov 23, 2012
    #5
  6. flyer22 macrumors newbie

    flyer22

    Joined:
    Sep 30, 2015
    Location:
    England
    #6
  7. LexS macrumors newbie

    LexS

    Joined:
    Nov 18, 2015
    #7
    I strongly advise against the Trim command. It may corrupt files on the SSD. GarbageControl is very good on modern SSDs and can be helped by leaving more free space on the SSD. There are even SSDs blocked in the Linux kernel:
    http://www.howtogeek.com/222077/how-to-enable-trim-for-third-party-ssds-on-mac-os-x/
    The reason that Apple warns against the use of the trimforce command is not for nothing. Apple has their own controllers inside their SSDs.
     
  8. LexS macrumors newbie

    LexS

    Joined:
    Nov 18, 2015
    #8
    I strongly advise against the Trim command. It may corrupt files on the SSD. GarbageControl is very good on modern SSDs and can be helped by leaving more free space on the SSD. There are even SSDs blocked in the Linux kernel:
    http://www.howtogeek.com/222077/how-to-enable-trim-for-third-party-ssds-on-mac-os-x/
    The reason that Apple warns against the use of the trimforce command is not for nothing. Apple has their own controllers inside their SSDs.
     
  9. chrfr macrumors 603

    Joined:
    Jul 11, 2009
    #9
    The problem with TRIM and SSDs in Linux was traced to a bug in the Linux kernel. Apple does not use its own controllers in SSDs; there may be custom firmware, but the controllers are made by 3rd parties, such as Samsung and Sandisk.
     
  10. flowrider macrumors 601

    flowrider

    Joined:
    Nov 23, 2012
    #10
    Apple does not make the SSD controllers used in Apple branded SSDs. Third party manufacturer's do.

    I have 5 internal SSDs in my cMP, all are Samsung, and a Transcend SSD in my MBA. I have been using TRIM since very early in the Yosemite OS life cycle. You are very wrong in your recommendation. And again, the problem is with Linux, not the Mac OS.

    I highly recommend the use of TRIM, it is necessary for proper SSD maintenance.

    Lou
     

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